diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/sd.c | 75 | ||||
| -rw-r--r-- | drivers/scsi/sd_zbc.c | 2 |
2 files changed, 7 insertions, 70 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 62eb9921cc94..bf32a0541427 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1035,13 +1035,13 @@ static void sd_config_write_same(struct scsi_disk *sdkp) * Reporting a maximum number of blocks that is not aligned * on the device physical size would cause a large write same * request to be split into physically unaligned chunks by - * __blkdev_issue_write_zeroes() and __blkdev_issue_write_same() - * even if the caller of these functions took care to align the - * large request. So make sure the maximum reported is aligned - * to the device physical block size. This is only an optional - * optimization for regular disks, but this is mandatory to - * avoid failure of large write same requests directed at - * sequential write required zones of host-managed ZBC disks. + * __blkdev_issue_write_zeroes() even if the caller of this + * functions took care to align the large request. So make sure + * the maximum reported is aligned to the device physical block + * size. This is only an optional optimization for regular + * disks, but this is mandatory to avoid failure of large write + * same requests directed at sequential write required zones of + * host-managed ZBC disks. */ sdkp->max_ws_blocks = round_down(sdkp->max_ws_blocks, @@ -1050,68 +1050,10 @@ static void sd_config_write_same(struct scsi_disk *sdkp) } out: - blk_queue_max_write_same_sectors(q, sdkp->max_ws_blocks * - (logical_block_size >> 9)); blk_queue_max_write_zeroes_sectors(q, sdkp->max_ws_blocks * (logical_block_size >> 9)); } -/** - * sd_setup_write_same_cmnd - write the same data to multiple blocks - * @cmd: command to prepare - * - * Will set up either WRITE SAME(10) or WRITE SAME(16) depending on - * the preference indicated by the target device. - **/ -static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd) -{ - struct request *rq = scsi_cmd_to_rq(cmd); - struct scsi_device *sdp = cmd->device; - struct scsi_disk *sdkp = scsi_disk(rq->q->disk); - struct bio *bio = rq->bio; - u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq)); - u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq)); - blk_status_t ret; - - if (sdkp->device->no_write_same) - return BLK_STS_TARGET; - - BUG_ON(bio_offset(bio) || bio_iovec(bio).bv_len != sdp->sector_size); - - rq->timeout = SD_WRITE_SAME_TIMEOUT; - - if (sdkp->ws16 || lba > 0xffffffff || nr_blocks > 0xffff) { - cmd->cmd_len = 16; - cmd->cmnd[0] = WRITE_SAME_16; - put_unaligned_be64(lba, &cmd->cmnd[2]); - put_unaligned_be32(nr_blocks, &cmd->cmnd[10]); - } else { - cmd->cmd_len = 10; - cmd->cmnd[0] = WRITE_SAME; - put_unaligned_be32(lba, &cmd->cmnd[2]); - put_unaligned_be16(nr_blocks, &cmd->cmnd[7]); - } - - cmd->transfersize = sdp->sector_size; - cmd->allowed = sdkp->max_retries; - - /* - * For WRITE SAME the data transferred via the DATA OUT buffer is - * different from the amount of data actually written to the target. - * - * We set up __data_len to the amount of data transferred via the - * DATA OUT buffer so that blk_rq_map_sg sets up the proper S/G list - * to transfer a single sector of data first, but then reset it to - * the amount of data to be written right after so that the I/O path - * knows how much to actually write. - */ - rq->__data_len = sdp->sector_size; - ret = scsi_alloc_sgtables(cmd); - rq->__data_len = blk_rq_bytes(rq); - - return ret; -} - static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd) { struct request *rq = scsi_cmd_to_rq(cmd); @@ -1344,8 +1286,6 @@ static blk_status_t sd_init_command(struct scsi_cmnd *cmd) } case REQ_OP_WRITE_ZEROES: return sd_setup_write_zeroes_cmnd(cmd); - case REQ_OP_WRITE_SAME: - return sd_setup_write_same_cmnd(cmd); case REQ_OP_FLUSH: return sd_setup_flush_cmnd(cmd); case REQ_OP_READ: @@ -2040,7 +1980,6 @@ static int sd_done(struct scsi_cmnd *SCpnt) switch (req_op(req)) { case REQ_OP_DISCARD: case REQ_OP_WRITE_ZEROES: - case REQ_OP_WRITE_SAME: case REQ_OP_ZONE_RESET: case REQ_OP_ZONE_RESET_ALL: case REQ_OP_ZONE_OPEN: diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index 378d071e47cb..7f466280993b 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -423,7 +423,6 @@ static bool sd_zbc_need_zone_wp_update(struct request *rq) return true; case REQ_OP_WRITE: case REQ_OP_WRITE_ZEROES: - case REQ_OP_WRITE_SAME: return blk_rq_zone_is_seq(rq); default: return false; @@ -477,7 +476,6 @@ static unsigned int sd_zbc_zone_wp_update(struct scsi_cmnd *cmd, rq->__sector += sdkp->zones_wp_offset[zno]; fallthrough; case REQ_OP_WRITE_ZEROES: - case REQ_OP_WRITE_SAME: case REQ_OP_WRITE: if (sdkp->zones_wp_offset[zno] < sd_zbc_zone_sectors(sdkp)) sdkp->zones_wp_offset[zno] += |